Who called from 2026641271

i  missed one call from 202-664-1271 last night and one this a.m.  when i answered the second call today, a man with a heavy accent asked for me by my first and last name and middle initial saying i bought a vacation package on November 16, 2004 on a MasterCard and did i remember that?  I said that I didn't because I have no MasterCard and haven't been on vacation on years anyway....  then the call was "lost."
i see posts of people saying they will alert the authorities, but who are these authorities?  who should i notify?

My mother received a similar call from a man with an accent. He told her he was with Social Security and started questioning her.  When she asked where he was located, the man hung up on her.  Like Dave, I will be notifying the proper authorities.

Received call on 3/23/2007. The person (would not provide name and had distinct accent) represented herself as calling medicare patients who she could save $$. Upon advising her I already had supplemental insurance, she was persistent in insisting this was a government sponsored program that would benefit me. She asked for my bank information and SSN. I refused to provide her any info other than I WAS NOT INTERESTED.  She then swore at me and hung up.  I called the number back that was  on my caller id.  I received a recording of person with British accent saying the party was not on line.

I came home tonight to find a 1-second message on my answering machine.  Caller ID said that the call came from 202-664-1271.  This was around 6:30 pm March 27, 2007.

Funny thing is that my phone number is in the 519 area code - which is Ontario (Canada).  Who-ever it is, they either don't know they're calling Canada, or don't care.

Just received a call from the same number. They said they were from General Electrics and would be in our neighbourhood tomorrow looking to install security systems. They confirmed my address, I said I wasn't interested and they hung up. I called back, and the number is not online.